Compression test after valve lapping
Thread Starter
Junior Member
Joined: Oct 2023
Posts: 26
Compression test after valve lapping
Hi Guys,
I lapped the valves on my 1995 maxima (4th gen). I only reinstalled one head on the motor and I'm doing compression test on it. The results are all over. One particular piston gives reading from 30psi to 100psi. Never mind the low compression but why such a gap in reading? (FYI: Before I lapped the valves I was getting 145 psi at that particular piston.)
I lapped the valves on my 1995 maxima (4th gen). I only reinstalled one head on the motor and I'm doing compression test on it. The results are all over. One particular piston gives reading from 30psi to 100psi. Never mind the low compression but why such a gap in reading? (FYI: Before I lapped the valves I was getting 145 psi at that particular piston.)
Thread
Thread Starter
Forum
Replies
Last Post
96ItaliaSE
4th Generation Maxima (1995-1999)
3
Apr 11, 2006 04:32 PM